TY  - BOOK
AU  - Strahler, Arthur N..
AU  - Strahler, Alan H.
TI  - Geography and man`s environment
SN  - 0471029297
U1  - U2 
PY  - 1977///
CY  - New York: 
PB  - John Wiley & Sons.
KW  - Geography
ER  -